brim will do the (16)______ adequately in most conditions

Câu hỏi :

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks

An important point to remember if you like spending time out in the open air is that the human head doesn‟t work very well outdoors if it becomes too hot, cold or wet. That‟s why a hat is a good investment, whenever you are planning to go out and about. Surprisingly, a single waterproof hat with a brim will do the (16)______ adequately in most conditions.

In cold climates, the problem is that the head is (17)______ heat all the time. As much as fifty to sixty per cent of your body‟s heat is lost through the head and neck, (18)______ on which scientist you believe. Clearly this heat loss needs to be prevented, but it‟s important to remember that hats don‟t actually keep you warm, they simply stop heat escaping.

Just as important is the need to protect your neck from the effects of bright sunlight, and the brim of your hat will do this. If you prefer a baseball cap, (19)______ buying one that has a drop down „tail‟ at the back to stop your neck getting sunburnt.

And in wet weather (20)______, hats are often more practical than pooling up the hood of your waterproof coat because when you turn your head, the hat goes with you, whereas the hood usually does not.